Universal Licensing System
WRDU445
COMMUNITY H.S.DIST. 99-SOUTH HIGH SCHOOL
License details
| ULS identifier | 4181923 |
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| Call sign | WRDU445 |
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| Radio service | IG |
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| Status | A |
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| Grant date | 2019-07-23 |
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| Expiration | 2029-07-23 |
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| Frequency range | 463.425 - 469.3125 MHz (4 frequencies) |
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| Locations | 2 |
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| Representative location | DOWNERS GROVE, DUPAGE, IL |
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| Coordinates | 41.7711667, -88.0206389 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:23:06 |
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Licensee
| Name | COMMUNITY H.S.DIST. 99-SOUTH HIGH SCHOOL |
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| Applicant type | G |
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| FRN | 0028641587 |
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| Location | DOWNERS GROVE, IL |
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| Address | 1436 NORFOLK STREET, DOWNERS GROVE, IL, 60516 |
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| Phone | 6307958500 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB2 | 463.42500000 | | | 50.000000 | 50.000000 | |
| 2 | 1 | MO | 463.42500000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | FB2 | 464.31250000 | | | 50.000000 | 50.000000 | |
| 2 | 1 | MO | 464.31250000 | | | 4.000000 | 4.000000 | |
| 2 | 1 | MO | 468.42500000 | | | 4.000000 | 4.000000 | |
| 2 | 1 | MO | 469.31250000 | | | 4.000000 | 4.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 463.42500000 | | 11K2F3E |
| 1 | 1 | 463.42500000 | | 7K60FXE |
| 2 | 1 | 463.42500000 | | 7K60FXE |
| 2 | 1 | 463.42500000 | | 11K2F3E |
| 1 | 1 | 464.31250000 | | 11K2F3E |
| 1 | 1 | 464.31250000 | | 7K60FXE |
| 2 | 1 | 464.31250000 | | 11K2F3E |
| 2 | 1 | 464.31250000 | | 7K60FXE |
| 2 | 1 | 468.42500000 | | 11K2F3E |
| 2 | 1 | 468.42500000 | | 7K60FXE |
| 2 | 1 | 469.31250000 | | 11K2F3E |
| 2 | 1 | 469.31250000 | | 7K60FXE |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 1436 NORFOLK STREET, DOWNERS GROVE, DUPAGE, IL | 41.77116667, -88.02063889 | 228.000 m | BANT | 17.000 m structure / 17.000 m overall | |
| 2 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 17.000 m | | | | 32.000 | |
| 1 | 2 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
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| 1 | 1436 NORFOLK STREET, DOWNERS GROVE, IL | DUPAGE | 6307958500 |
License history
| Date | File or call sign | Action |
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| 2019-07-23 | WRDU445 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
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| ULS | 4181923 | 2026-08-02 01:23:06 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WRDU445 | ULS 4181923 | 2026-08-02 01:23:06 |
| Status | A | ULS 4181923 | 2026-08-02 01:23:06 |
| Service | IG | ULS 4181923 | 2026-08-02 01:23:06 |
| Grant Date | 2019-07-23 | ULS 4181923 | 2026-08-02 01:23:06 |
| Expiration Date | 2029-07-23 | ULS 4181923 | 2026-08-02 01:23:06 |